Test :: Unit Rails-如何断言一个数字大于另一个数字? [英] Test::Unit Rails - How to assert one number is greater than another one?

问题描述

我正在用Test :: Unit编写我的第一个单元测试，现在已经到了需要比较两个数字的地步.令我惊讶的是，我发现以下任何一个都不是可用:

I am writing my first unit tests with Test::Unit and I have reached a point where I need to compare two numbers. Much to my surprise, I have discovered that none of the following were available:

assert_greater_than
assert_lesser_than
assert_greater_or_equal_than
assert_lesser_or_equal_than

这正常吗?那我该怎么办呢?

Is this normal? How should I do it then?

谢谢

推荐答案

Test :: Unit提供了方法assert_operator，而不是像您建议的那样提供一堆不同的断言，像这样使用:

Rather than provide a bunch of different assertions as you suggest, Test::Unit provides the method assert_operator, used like this:

assert_operator x, :>, y
assert_operator x, :>=, y
etc. 

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